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Long-term assessment of an innovative mangrove rehabilitation project: case study on Carey Island, Malaysia.

Motamedi S, Hashim R, Zakaria R, Song KI, Sofawi B - ScientificWorldJournal (2014)

Bottom Line: Further, a large number of mangrove seedlings were planted using different techniques.The nutrient concentration, the pH value, and the salinity index demonstrate that the site is conducive in establishing mangrove seedlings.As a result, we conclude that the site is now ready for attempts to rehabilitate the lost mangrove forest.

View Article: PubMed Central - PubMed

Affiliation: Department of Civil Engineering, Faculty of Engineering, University of Malaya, 50603 Kuala Lumpur, Malaysia.

ABSTRACT
Wave energy and storm surges threaten coastal ecology and nearshore infrastructures. Although coastal structures are conventionally constructed to dampen the wave energy, they introduce tremendous damage to the ecology of the coast. To minimize environmental impact, ecofriendly coastal protection schemes should be introduced. In this paper, we discuss an example of an innovative mangrove rehabilitation attempt to restore the endangered mangroves on Carey Island, Malaysia. A submerged detached breakwater system was constructed to dampen the energy of wave and trap the sediments behind the structure. Further, a large number of mangrove seedlings were planted using different techniques. Further, we assess the possibility of success for a future mangrove rehabilitation project at the site in the context of sedimentology, bathymetry, and hydrogeochemistry. The assessment showed an increase in the amount of silt and clay, and the seabed was noticeably elevated. The nutrient concentration, the pH value, and the salinity index demonstrate that the site is conducive in establishing mangrove seedlings. As a result, we conclude that the site is now ready for attempts to rehabilitate the lost mangrove forest.

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The geographical position of Carey Island. Gray-shaded hatch denotes the thin mangrove cover.
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fig1: The geographical position of Carey Island. Gray-shaded hatch denotes the thin mangrove cover.

Mentions: Carey Island is located within the Klang Isle (03°38′N and 101°00′E), which is one of the most famous mangrove forest reserves in the Strait of Malacca alongside the west coast of the Malaysia Peninsula (see Figure 1). Klang Isle is composed of eight small islets, and Carey Island is the largest of the islets, separated from the Selangor coast by the Langat River on the east and the Klang River on the north. The total area of Carey Island is 161.87 km2 and nearly 65% of its total area is covered with palm oil trees [38]. The island's elevation is lower than the mean high tide level. Consequently, to protect the upper land from the effect of higher waves, coastal dikes, a network of drainage canals, and water control systems have been constructed [26].


Long-term assessment of an innovative mangrove rehabilitation project: case study on Carey Island, Malaysia.

Motamedi S, Hashim R, Zakaria R, Song KI, Sofawi B - ScientificWorldJournal (2014)

The geographical position of Carey Island. Gray-shaded hatch denotes the thin mangrove cover.
© Copyright Policy - open-access
Related In: Results  -  Collection

Show All Figures
getmorefigures.php?uid=PMC4109262&req=5

fig1: The geographical position of Carey Island. Gray-shaded hatch denotes the thin mangrove cover.
Mentions: Carey Island is located within the Klang Isle (03°38′N and 101°00′E), which is one of the most famous mangrove forest reserves in the Strait of Malacca alongside the west coast of the Malaysia Peninsula (see Figure 1). Klang Isle is composed of eight small islets, and Carey Island is the largest of the islets, separated from the Selangor coast by the Langat River on the east and the Klang River on the north. The total area of Carey Island is 161.87 km2 and nearly 65% of its total area is covered with palm oil trees [38]. The island's elevation is lower than the mean high tide level. Consequently, to protect the upper land from the effect of higher waves, coastal dikes, a network of drainage canals, and water control systems have been constructed [26].

Bottom Line: Further, a large number of mangrove seedlings were planted using different techniques.The nutrient concentration, the pH value, and the salinity index demonstrate that the site is conducive in establishing mangrove seedlings.As a result, we conclude that the site is now ready for attempts to rehabilitate the lost mangrove forest.

View Article: PubMed Central - PubMed

Affiliation: Department of Civil Engineering, Faculty of Engineering, University of Malaya, 50603 Kuala Lumpur, Malaysia.

ABSTRACT
Wave energy and storm surges threaten coastal ecology and nearshore infrastructures. Although coastal structures are conventionally constructed to dampen the wave energy, they introduce tremendous damage to the ecology of the coast. To minimize environmental impact, ecofriendly coastal protection schemes should be introduced. In this paper, we discuss an example of an innovative mangrove rehabilitation attempt to restore the endangered mangroves on Carey Island, Malaysia. A submerged detached breakwater system was constructed to dampen the energy of wave and trap the sediments behind the structure. Further, a large number of mangrove seedlings were planted using different techniques. Further, we assess the possibility of success for a future mangrove rehabilitation project at the site in the context of sedimentology, bathymetry, and hydrogeochemistry. The assessment showed an increase in the amount of silt and clay, and the seabed was noticeably elevated. The nutrient concentration, the pH value, and the salinity index demonstrate that the site is conducive in establishing mangrove seedlings. As a result, we conclude that the site is now ready for attempts to rehabilitate the lost mangrove forest.

Show MeSH
Related in: MedlinePlus